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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Knock

Knock in September

Great month. Inside Knock's best window: May–Sep.

Key facts

Verdict
Great
Temperature
17°C / 10°C
average high / low
Rain days
17
Crowds
Medium
Ireland overall
Prices
Medium
Ireland overall

Verdict

GreatBest and avoid months for Knock

Inside Knock's best window: May–Sep.

Weather in September

Long-term averages
  • KnockHighs around 17 °C, lows around 10 °C, rain on about 17 days

Crowds and prices

Crowds · Ireland overall
Medium
Prices · Ireland overall
Medium

Ireland overall: Schools back, sea at its warmest, often settled weather: a strong month for driving the coast.

What to pack

  • A warm layer for the evenings
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Ireland in September →